Use promo code:HH20 to get 10% off and free shipping on UEFA EURO 2024 purchases over $500 in cart items.

A cooling fan to prevent the jammer from overheating

Perfectjammer
2023/04/24

Some government models can effectively create blind spots over a kilometer wide. Although these units are not always necessary, they are very useful in many situations. In this article, we will discuss what you should pay attention to when making a purchase.

Firstly, you should consider signal strength.

Signal strength can affect the interference range, overall performance, and durability of the device. In addition, you should choose equipment with directional antenna to obtain a wider interference area, while omnidirectional antenna is more suitable for 360 degree coverage. Find a cooling fan to prevent the jammer from overheating. This feature makes it last longer. A gsm jammer with high-quality cooling fans will ensure that the equipment does not overheat.

best 8 Bands GPS Signal Blocker

The range of powerful signal jammer is endless.

From five to twenty meters, these devices can interfere with signals. Some designs are only applicable to specific frequency bands, but can be fully customized according to national/regional standards. You can even turn off individual frequency bands to prevent them from interfering with other signals. These devices are very effective in blocking signals and making life easier. Whether you want to protect your family's safety or just want to avoid annoying prank calls, jammers are the perfect solution.

Powerful signal jammers can create more dense dead zones than mobile phones, and many law enforcement agencies use them to track criminals. They can also interfere with the GPS signal of mobile phones. When the jammer exceeds the dead band of the phone, the interference range will increase. This type of jammer can protect personal privacy and also alter radio waves.

If you are a teacher, you may want to know how mobile phone blockers maintain classroom order. Many educators around the world use jammers to prevent students from using mobile phones for communication. Educators from countries such as China, Russia, and Japan have already used them in the classroom to prevent cheating. Additionally, if you enjoy reading, you may not want to be disturbed by background ringtones.



Most schools prepare the exam room in advance. This includes installing a mobile signal blocker. The jammer is not very powerful and can be easily turned off when the teacher needs to interrupt the lecture. They are small and can be easily hidden in their pockets. A pocket jammer is an ideal choice for classrooms because it looks like a phone. The design purpose of the jammer is to block the phone signal while maintaining order